Notification handling without run loop of a primary thread

2 Dec 2005

      site_archiver@lists.apple.com
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Hi all,

    I am trying to handle distributed notifications in a CoreFoundation Tool
    that does not run a run loop of its primary thread (actually, it is
    the requirement). I can not find any solution that works, so I ask you
    about possibility to do in general.

    I thought that it is possible to track notifications using a run loop of
    a separate thread (see code snippet below), but CFRunLoopRun
    function does not run a thread run loop, it simply returns a control
    and a thread finishes. I guess that I do not initialize a thread run loop
    correctly, so please suggest me the appropriate way to run it and force
    to handle notifications.

    /*******************************************************/
    #include <CoreFoundation/CoreFoundation.h>
    #include <pthread.h>

    int gFlag = 0;

    void gNotificationHandler(CFNotificationCenterRef center, void *observer,
        CFStringRef name, const void *object, CFDictionaryRef userInfo)
    {
        gFlag = 1;
    }

    void *gThreadRoutine(void *value)
    {
        CFNotificationCenterRef center = CFNotificationCenterGetDistributedCenter();
        CFNotificationCenterAddObserver(center, NULL, gNotificationHandler,
            CFSTR("NAME1"), CFSTR("NAME2"), CFNotificationSuspensionBehaviorDeliverImmediately);

        CFRunLoopRun();

        CFShow(CFSTR("[THREAD] FINISHED"));
        return NULL;
    }

    int main()
    {
        pthread_t thread = {0};
        pthread_create(&thread, NULL, gThreadRoutine, NULL);

        while (1 != gInt)
        {/* do nothing */
        }

        return 0;
    }

    /*******************************************************/

    Thanks in advance!

Best regards,
Vladimir Magaziy.
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